Improved machine for rolling car-coupling- fins



W. DAVIS & J. WHILE.

MACHINE FOR ROLLING GAB COUPLING PINS.

No. 100,125. Patented Feb. 22, 1870.

dulled swat gaunt djfiiire.

WILLIAM DAVIS AND JOSEPH WHILE, OF. CLEVELAND, OHIO.

was Patent No. 100,125, datedFebrua/ry 22, 1870.

To all whom it may concern.-

Be it known that we, WILLIAM Dav s and JOSEPH W'HILE, of Cleveland, in the'county of Guyahoga, and State of Ohio, have invented certain new and useful- Improvements in Machines for Rolling Railroad Oar Coupling Pins and we do hereby declare that the following is a full and complete description of the same, reference being bad to the accompanying drawings making part of this specification.

Objective.

This invention relates to a'pair of rollers, so eonstructcd and arranged that the pins used for coupling railrmid-cars together are rolled into shape and the eye punched therein at one operation, as hereinafter more fully described.

Drawings.

Figure 1 is a side view of the machine.

Figure 2, a top view of the lower roller. 7

Figures 3 and 4 are transverse sections of the rollers.

Like letters of reference refer to like parts in the different views.

Descriptive.

In fig. l I A represents a frame, in which the rollers B O are journaletl.

The lower roller B is not adjustable, whereas the roller 0 is, by means of the movable block D, in which it is journalcd.

The lower roller is provided with a pair of collars, E 1 between which is sunk in the roller a deep groove, G, equal in depth to one-half of the width of a pin, and of a width equal to the thickness of the same.

On the roller U is a pair of collars, H, so adjusted that they fit in and run' between the collars E F, as shown in fig. 1.

In the roller (1 is cut a groove, I, which, together with the depth of the collars, is equal to one-half the width of a pin, and in width equal to the thickness of the same.

It will be obvious that the grooves in the two rollers, to ether with the depth oi the collars of each, are equal to he width ota pin, as indicated by the opening .l, hg. .l. This figure also shows the relation and position of the rollers in reference to each other when adjusted for practical use. 1

The head of the pin is formed by a recess or die, K, ligs. 3 am. 4, sunk in the opposite sides of each of the rollers, one-half of the head being formed in each roller.

The recesses or dies are so arranged that they become in direct relation to each other as the rollers re-Y volve, as shown in fig. 4.

Projected through the flanges E F. is a pair of punches, L, whereby the eye is punched in the head of the pin.

The position of the punches is such as to operate immediately on the head at the time it is beingformed by the dies, the punches occupying a position intermediate between the dies, as shown in the drawing.

The punches are driven forward toward GZlOILOtIlGl by a cam, A, fig. 2, which,as the rollers revolve, operateupon the outer end, driving them inwardly from the position shown in fig. l' to that shown in fig. 2, but which are drawn back by means of a spring, a, surrounding the punches.

Operative.

The practical operation of this machine is asfollows, viz:

A bar of iron of the proper width and thickness for' punching a hole therein, leaving only a. thin burr in the l1ole,'which is'easily removed,

The diameter of the rollers is such-that two pins are made at each revolution thereof, and the number made being more or less, according to the length of the bar run" through, and from which they are severallycut off after passing through the rollers. By this rneansany number of pins. are made of a uniform size and shape, requiring but little hand-work to finish them for immediate use. greater facility and expedition than they can'be in the .ordinary way, which is by hand an expensive, slow,

and laborious way of manufacturing them.

secure by Letters Patent, is- 1 v 1. The combination of the herein-described grooved and collared rollers B .G, constructed and arranged in relation to eachother, andoperating in the manner substantially as and for the purpose set-foirth.

2,.The punches L, springs a, cams A, as arranged in combination with the rollers B G, substantially as and for the purpose set forth.

WILLIAM DA VlS.

JOSEPH WHILE.

\Vhat we'claim as 'our improvement, and desire to Witnesses: W. H. 'lnonrsox, J. ,S, Rnnrinlm.

They are also made with 

